laba_4_1_java_Student

package com.company;

public class Student implements Comparable {

    private String surname, groupNumber;
    private short gradeMath, gradePhys, gradeProgramming, gradeEngGraph;
    public static String whatWeSort = "GroupNumber";

    public Student(String groupNumber, String surname, short gradeMath, short gradePhys, short gradeProgramming, short gradeEngGraph) {
        this.surname = surname;
        this.groupNumber = groupNumber;
        this.gradeMath = gradeMath;
        this.gradePhys = gradePhys;
        this.gradeProgramming = gradeProgramming;
        this.gradeEngGraph = gradeEngGraph;
    }

    // getters/setters

    public String getSurname() {
        return surname;
    }

    public String getGroupNumber() {
        return groupNumber;
    }

    public short getGradeMath() {
        return gradeMath;
    }

    public short getGradePhys() {
        return gradePhys;
    }

    public short getGradeProgramming() {
        return gradeProgramming;
    }

    public short getGradeEngGraph() {
        return gradeEngGraph;
    }

    public String getAllInfo() {
        return (groupNumber + (groupNumber.equals("") ? "" : " ") + surname + " " + gradeMath +
            " " + gradePhys + " " + gradeProgramming + " " + gradeEngGraph).replaceAll("\\b0\\b", "-");
    }

    public String getGroupNumberForSorting() {
        return groupNumber.equals("") ? "}" : groupNumber;
    }

    public float getAverageScoreForSorting() {
        float averageScore = 0;
        short divider = 0;
        if (gradeMath > 0) {divider++;}
        if (gradePhys > 0) {divider++;}
        if (gradeProgramming > 0) {divider++;}
        if (gradeEngGraph > 0) {divider++;}

        if (divider > 0) {
            averageScore = (float) (gradeMath + gradePhys + gradeProgramming + gradeEngGraph) / divider;
        }
        return averageScore < 1 ? 11 : averageScore;
    }

    public void setSurname(String surname) {
        this.surname = surname;
    }

    public void setGroupNumber(String groupNumber) {
        this.groupNumber = groupNumber;
    }

    public void setGradeMath(short gradeMath) {
        this.gradeMath = gradeMath;
    }

    public void setGradePhys(short gradePhys) {
        this.gradePhys = gradePhys;
    }

    public void setGradeProgramming(short gradeProgramming) {
        this.gradeProgramming = gradeProgramming;
    }

    public void setGradeEngGraph(short gradeEngGraph) {
        this.gradeEngGraph = gradeEngGraph;
    }

    public int compareTo(Object o) {
        if (whatWeSort.equalsIgnoreCase("GroupNumber"))
            return Integer.parseInt(groupNumber) - Integer.parseInt(((Student) o).groupNumber);
        else if (whatWeSort.equalsIgnoreCase("Surname"))
            return surname.compareToIgnoreCase(((Student) o).surname);
        else
            return 0;
    }

}